CVE-2026-21289

7.5 HIGH

📋 TL;DR

CVE-2026-21289 is an incorrect authorization vulnerability in Adobe Commerce that allows attackers to bypass security controls and view unauthorized data without user interaction. This affects Adobe Commerce versions 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 and earlier.

💻 Affected Systems

Products:
  • Adobe Commerce
  • Magento Open Source
Versions: 2.4.9-alpha3, 2.4.8-p3, 2.4.7-p8, 2.4.6-p13, 2.4.5-p15, 2.4.4-p16 and earlier
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: All deployments running affected versions are vulnerable regardless of configuration.

📦 What is this software?

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

Magento by Adobe

Magento (now Adobe Commerce) is a leading open-source e-commerce platform powering hundreds of thousands of online stores worldwide, processing billions in transactions across B2C, B2B, and marketplace models. Used by brands including Nike, Ford, Coca-Cola, Olympus, and thousands of mid-market retai...

Learn more about Magento →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers gain unauthorized access to sensitive customer data, payment information, or administrative data, leading to data breach and regulatory compliance violations.

🟠

Likely Case

Unauthorized viewing of customer information, order details, or product data that should be restricted by authorization controls.

🟢

If Mitigated

Limited exposure if proper network segmentation, WAF rules, and access controls are implemented to restrict attack surface.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

No user interaction required, making exploitation straightforward if the vulnerability details become public.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Update to Adobe Commerce 2.4.9-beta1, 2.4.8-p4, 2.4.7-p9, 2.4.6-p14, 2.4.5-p16, 2.4.4-p17 or later

Vendor Advisory: https://helpx.adobe.com/security/products/magento/apsb26-05.html

Restart Required: Yes

Instructions:

1. Backup your Adobe Commerce instance. 2. Apply the security patch via Composer: composer require magento/quality-patches. 3. Apply specific patch for your version. 4. Clear cache: php bin/magento cache:clean. 5. Restart services.

🔧 Temporary Workarounds

Temporary Access Restriction

all

Restrict access to admin and API endpoints using web server rules or WAF.

# Example Apache rule: RewriteCond %{REQUEST_URI} ^/admin [NC]
# Example Nginx: location ~ ^/admin { deny all; }

🧯 If You Can't Patch

  • Implement strict network access controls to limit exposure to trusted IPs only
  • Deploy a web application firewall with rules to detect and block authorization bypass attempts

🔍 How to Verify

Check if Vulnerable:

Check Adobe Commerce version via admin panel or run: php bin/magento --version

Check Version:

php bin/magento --version

Verify Fix Applied:

Verify version is updated to patched version and test authorization controls for previously vulnerable endpoints

📡 Detection & Monitoring

Log Indicators:

  • Unusual access patterns to admin or API endpoints
  • Requests to sensitive data endpoints from unauthorized sources

Network Indicators:

  • Increased traffic to data endpoints without corresponding authentication logs

SIEM Query:

source="*commerce*" AND (uri_path="/admin/*" OR uri_path="/rest/*" OR uri_path="/graphql") AND status=200 AND NOT user_authenticated=true

🔗 References

📤 Share & Export